@Belissa,
Belissa wrote:....Please, help me. What should I do? Leave him alone ( i am not sure if he let me)? I...
You are a grown, free woman. No man should let you do anything - you don't have to look to anyone for permission.
And he's involving his kids in this and the girlfriend knows, and she is keeping him around, for whatever her reasons are, whether they are financial security, or to save face or maybe they both have affairs or it's an open marriage or she's dumb or whatever.
In the meantime, he comes over and has coffee with you and I assume occasional nookie and sometimes brings his kids, too.
You do not have a relationship; you are a friendly café and reading room where occasionally sex happens.
This is an awesome relationship.
For
him.
He gets his family and he gets his side fun. He can promise you anything and you believe him - and you also seem to be somewhat subservient.
This is just ducky for him.
He will never leave her. Here's why.
1) He'd have to start paying some form of support, and would be supporting two separate households. That is expensive.
2) He might be considered common-law married to her (it depends on the state and other factors). If that's the case, then he'd need to go through court proceedings and could lose custody of his children. By involving his kids with you, he may very well have neatly proven his unfitness to be a parent.
3) Even if he can get partial custody, that's what it'll be - partial. He will see a lot less of his children, and I bet he doesn't want that.
4) He already didn't marry this gal. You think he's gonna marry you?
5) He's already proven that he will cheat. You think his cheating days are over? Think again.